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Related Concept Videos

The Vestibular System01:29

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The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), current, or resistance using a d'Arsonval galvanometer. This electromechanical instrument is also known as a moving coil galvanometer.
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Related Experiment Video

Updated: Apr 25, 2026

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
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Verticality perception during and after galvanic vestibular stimulation.

Katharina Volkening1, Jeannine Bergmann2, Ingo Keller2

  • 1Graduate School of Systemic Neurosciences, Ludwig-Maximilians-University, Großhaderner Str. 2, 82152 Planegg-Martinsried, Germany; Schoen Klinik Bad Aibling, Kolbermoorerstr. 72, 83043 Bad Aibling, Germany; German Center for Vertigo and Balance Disorders (DSGZ), Ludwig-Maximilians-University, Marchioninistr. 15, 81377 Munich, Germany.

Neuroscience Letters
|August 27, 2014
PubMed
Summary

Galvanic vestibular stimulation (GVS) alters verticality perception. Shifts occurred towards the anode during stimulation and reversed towards the cathode after, especially impacting haptic perception.

Keywords:
Galvanic vestibular stimulationSubjective verticalVerticality perception

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Area of Science:

  • Neuroscience
  • Human Perception
  • Vestibular System

Background:

  • The human brain integrates vestibular, somatosensory, and visual inputs for verticality perception.
  • Understanding how external stimuli modulate this perception is crucial for neuroscience and therapeutic applications.

Purpose of the Study:

  • To investigate the effects of galvanic vestibular stimulation (GVS) on verticality perception during and after application.
  • To assess changes in subjective visual, haptic, and postural verticals.

Main Methods:

  • Healthy subjects underwent galvanic vestibular stimulation (GVS).
  • Subjective visual, haptic, and postural verticals were assessed during and after stimulation.
  • Time course analysis of GVS-induced changes in haptic vertical was performed.

Main Results:

  • During GVS, subjective visual and haptic verticals shifted towards the anode.
  • After GVS cessation, these shifts reversed towards the cathode across all modalities.
  • Haptic modality showed the strongest effects, with anodal shifts persisting during stimulation.

Conclusions:

  • GVS significantly influences verticality perception, with distinct effects during and after stimulation.
  • The observed reverse effects post-stimulation suggest complex neural processing.
  • Findings have implications for GVS-based therapies targeting sensory integration and balance.